What's the killer feature of this app, then? It claims that it's great at receiving "email messages right away with push notifications," syncing calendar and device contacts, folders, and attachments, and using multiple Outlook.com accounts.

So, therefore, it is an ugly little mail app that offers nothing over the Gmail app or any other mail client that Android vendors choose to bundle in.

Why would you want an app for New Year's Eve? If knowing the best places to view the Harbour Bridge fireworks from isn't enough, then maybe the 50 free SMS messages will do it.

According to the app page:

preload up to 50 midnight SMS messages to your friends and family, and Telstra will send these free of charge from midnight, no matter what network you are on. That way, you can keep partying through midnight and beyond without missing a thing.

If we can avoid the hassle of post-midnight network congestion, then this app looks like it is a must-have!

Before all the tin-hat wearers and conspiracy theorists jump all over this app as an invasion of privacy, let's start by pointing out the limits of the "historical indexes" that one can search with this app.

For births, it is 100 years or more; deaths start at 30 years ago; and marriages are 50 years or more.

This app is aimed clearly at the family tree builders, and allows users to purchase any certificates that they are interested in.

For budgetary reasons, we do not suggest that you go all Pokémon and collect them all.

Here's something of a rarity these days: a Twitter client that's still in active development, and without a price of AU$20 or a bunch of crying that Twitter is stopping it from making money. Probably because it is sitting on an awfully large amount of user tokens.

Given that the official Twitter client for Android is not outstanding by any definition, if you are in the market for a new Twitter client, maybe this one is for you. Echofon also has a Pro version, which is available for AU$5.

This is an app that we hope you never have to use. Based on an app from the FBI, the Australian Federal Police (AFP) has released an app to help parents with missing children.

The app allows parents to store photos and information about their child on their mobile, so it can be immediately provided to authorities if the child goes missing.

The application also includes safety advice and checklists for parents on keeping children safe, information about what to do in the hours immediately after a child goes missing, and quick and efficient access to emergency contact phone numbers.

Does your personal health need help? Then put a great big new tax on carbs. This is the app to control your carbs, not your carbon. Wipe obesity off the map today with this app.

The app answers the questions you think need to be answered (on carbs, not union officials). As always, any recommendations found in this app should be treated as general guidelines, not core promises.